Click 
to start recording.
Press 
to stop recording.
Click 
to close the recording tool.
<Remark> You can use annotation tools when recording, but you can’t save it.
8.13I would like to use the mask mode
Click 
to open the mask mode.
You can directly modify the length and the width of the block with mouse.
Click 
to modify the transparency of the block.
Click 
to close the mask mode.
8.14I would like to use the spotlight mode
Click 
to open Spotlight mode.
Modify the length and the width with mouse.
Click 
to modify the shape and transparency of the block.
Click 
to close the Spotlight mode.
